British-Irish boy-band One Direction's stars Zayn Malik and Louis Tomlinson were shooting for a commercial on the sets of Nickelodeon and they decided to spice their day up by pulling a prank on their One Direction band-mates Harry Styles, Niall Horan and Liam Payn.

They used the help of an actress that posed to be a pregnant producer from Nickelodeon and during the interview, had a sudden labor pain. It makes for a hilarious video when Styles, Horan and Payn get nervous and have no clue how to handle the situation.

The prank seems to have worked perfectly when Harry Styles gives the extreme reaction and responds with so much intensity. He starts panicking, starts calling the pregnant woman's husband and gets extremely nervous.

One Direction, a British-Irish Boy Band, came to the scene in November 2011 when their album Up All Night became the fastest selling debut album in the UK in 2011. This boy-band star Zayn Malik,19, whose certainly has a sense of humor has been made clear after this prank video,  has also been in the news lately for dating Perry Edwards who belongs to a girl band called Little Mix.